Fan motor mounting



, 1936- J. J, WALL FAN MOTOR MOUNTING Filed June 10, 1935 In wer/forMarch 31 Patented Mar. 31, 1936 UNITED STATES PATENT OFFICE i thonElectric Manufacturing Corporation,

Wausau, Wis., a corporation of Wisconsin Application June 10,

2 Claims.

This invention relates to standards for supporting electric motor fans,and the purpose of the invention is to combine with the swivel jointbetween the motor housing part of the standard and its support, a balljoint which serves to conceal the pivot and limit the hinge motionbetween the motor carrying element and its support; and to provide amotor mounting of this character having a large surface engagement atthe hinge and allowing for close -adjustment to regulate frictionalresistance so that the angular setting of the motor with reference tothe standard may be maintained with certainty while still permittingchange in such adjustment merely by rocking the motor housing on theupright part of the standard.

The objects of the invention are `accomplished by means of theconstruction illustrated in the drawing, in which:

Figure 1 shows in side elevation improved fan motor mounting, the motorand fan being indicated in this view by broken lines.

Fig. 2 shows in elevation an enlarged view of the mounting taken fromthe right of Fig. 1.

Fig. 3 is a fragmentary sectional View of the motor housing.

Fig. 4 is a fragment-ary sectional view of the supporting member towhich the motor housing is pivoted.

Fig. 5 is a detail view partly in section of the bolt and nut forconnecting the motor housing and support therefor.

It is desirable in motor supports of the class herein described toprovide a swivel connection in the supporting means for the motor whichlimits the possible angular adjustment of the motor on the standard soas to prevent the fan guard or fan from coming into contact with thesupport and incidentally to conceal the swivel connection to improve theappearance of the article. In the present case this purpose isaccomplished by combining with the swivel a covering therefor ofsemi-spherical bearing elements.

The construction consists of a ring-shaped casting for encircling themotor frame and having at its lower end a projecting perforated earsurrounded by a semi-spherical flange which is spaced from the ear andallows for the reception of pivoting elements on a support for the motorhousing. This ring-shaped motor housing I as indicated in Fig. 2 carriesset screws 2 for retaining a motor 3, Fig. 1, therein.

'Ihe casting I carries a perforated ear 4 projecting outwardly therefromto fit between the perforated ears 5 of a hollow standard 6. 'I'hecasting I has a semi-spherical flange I spaced from and concealing theear 4. The flange 1 is perforated at 8 in line with the perforation 9 in1935, Serial N0. 25,836

ear 4. The e-ars 5 of standard 6 are also perforated at I0. The ears 4and 5 are pivoted to'- gether by a bolt II having an integral head I2 atone end and threaded at its opposite end I3 to receive nut I4.

When the parts I and 6 are connected together by the bolt passingthrough ears 4 and 5 the member I may be rocked angularly with referenceto the standard 6 so far' as permitted by the semi-spherical flange I5on standard 6. The edges of this flange limit the relative motion byengaging the flange 'I at the points I6 or Il, Fig. 1.

The open lower end I8 of the circular flange 'I is at all times coveredby iiange I5. The normal surface contact between ears 4 and 5 issupplemented by the surface contact between the flanges 'I and I5,adding to the frictional resistance afforded by the ears. The precisedesired resistance to angular adjustment at the swivel connection isattained by tightening nut I4 on bolt I I. The head of the bolt and thenut engage opposite surfaces of the perforated ears 5, clamping themmore or less against the ear 4. The perforations 8 in flange 'I allowsfor access to the bolt and nut at all times and for insertion of thebolt when the parts of the standard are assembled together.

The standard 6 as indicated in Figs. 1 and 2 may carry the motor speedregulating switch I9.

In the use of the construction the angular relationship between themembers I and 6 is normally rarely changed but may be simply by rockingmember I and the motor carried thereby with reference to standard 6, thefriction between these two elements serving to retain them in their setposition.

It is desirable to have such a swivel connection in a fan mounting butalso desirable to conceal the joint for the sake of appearance.

I claim:

1. A joint of the class described comprising a support and a supportedelement, said support and said element having intertting ears andintertting semi-spherical flanges for encircling and concealing saidears, said ears having coaxial perforations, and a bolt passing throughsaid ears.

2. A joint of the class described comprising a support and a supportedelement, said support and said element having interfitting ears andinteri'ltting semi-spherical flanges for encircling and concealing saidears, said ears having coaxial perforations, a bolt passing through saidears, and one of said flanges having a perforation in line with theperforations in said ears and for receiving the bolt.

JAMES J. WALL.

